and later this month, chuck hagel has been tagged by president obama to be the next defense secretary. you can watch his confirmation hearing before the senate armed services committee. that will be january 31 at 9:31 a.m. eastern, and also on c-span3. >> what's the best training for a policeman? >> i said it before, i'll say it again, the best training you can get to become a really good police officer and understand what it's all about is walking a foot beat. i'll say that until the day i die. you learn how to develop sources. you learn how to use intelligence information. you learn how to leverage relationships in the community and that is the key. people in a community trust you. they'll tell you when there are things that are happening that are not yet crime so that you can intervene. they'll tell you how to go about doing it. i really learned the most of my career from those relationships. >> from high school dropout to single mother to the youngest police chief in washington, d.c., more with cathy lanier sunday night at 8:00 on c-span's "q&a." c-span, created by america's cable